I recommend considering locations near Naval Air Station Jacksonville and Naval Station Mayport.

And even afterwards I’d recommend self managing if you’re in the area.

BiggerPockets also has a calculator you can use to analyze deals and I highly recommend you start this as soon as possible, even if you are not ready to buy.

I am looking into purchasing a single family home ,and converting it into a duplex ,and a 2 car garage into a ADU what type of loan is recommended ?

Im hoping the numbers work out. jijijijiji Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

I highly recommend creating procedures for them, either written or recorded.

It would be greatly appreciated if there are any recommendations or self-recommendations.

If yes, do you have any recommendations?

While possible to do after you have many properties where it can be paid off quickly I would not recommend doing it out front. using this method to circumvent saving cash will only lead to over leverage and a false feeling of investing to slow you down later  

Instead, my recommendations would be to not only visit the places you've already mentioned but perhaps also attend a few local real estate meetups in those areas to get a really good sense of what's out there in terms of the lay of the land.BP is great for connecting you with local brokers/investors in the areas btw, simply hop into any of the local forums and create a post that you're looking to chat with someone!